This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: UCD9248
The current sensing calibration parameter includes gain and offset. Are these value calibrated and set in default from factory or it should be set by ourselfves? Are these values automatically calculated and set by the power management designer software? I think each UCD9248 may be different and should have independent calibration value. Do I need to calibrate each UCD9248 on my board and set different value? If it is true, I think it is difficult for product production.
I have 3 boards of the same design, current sensing result is different in an extent of 50%. This is why I ask this question.
We will check and reply to you.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Qian Chen:
The IOUT_CAL_GAIN should match the current sense gain of power stage.
Usually IOUT_CAL_OFFSET is not needed if the current sense accuracy looks fine.
We don't hear from you for some time.
Please let us know if you need further support.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.